AROI-ESTRO GYN Teaching Course

MLB (midline block) 3DCRT

• Central rectangular portion with an area 10 × 4 cm at isocenter • Homogeneity around target for teletherapy and brachytherapy • Thickness of 5.5 HVL • The fall-off of dose between point A and point B is estimated by normalizing the point A dose value to 100%.